by Ed HoganVocalist Marilyn McCoo is featured on the 5th Dimension's million-selling hits "Wedding Bell Blues," "One Less Bell to Answer," and "(Last Night) I Didn't Get to Sleep at All." A daughter of a doctor, McCoo started singing at an early age and continued to sing throughout her grammar and high school years. As a teen, she appeared on Art Linkletter's Talent Scouts. Her family moved to Los Angeles when she was around 19. While pursuing a modeling career and entering beauty contests (she won the title of Miss Bronze California, 1962), McCoo met photographer Lamonte McLemore. In the early '60s, McLemore and McCoo joined with Floyd Butler and Harry Elston to form the Hi-Fis. Performing in local clubs, the group came to the attention of Ray Charles. They toured with "the Genius of Soul" in 1965. Charles produced a single, the jazzy "Lonesome Mood." Butler and Elston left the Hi-Fis to form the Friends of Distinction ("Grazing in the Grass...